java - 。求一个矩阵的逆，本想用jama.jar里面的求逆去运算，但是老是报 Matrix is singular ？

Answer 1

Matrix is ​​singular means that the matrix is ​​a singular matrix. Singular matrix = matrix with dissatisfied rank = matrix corresponding to determinant value 0. Singular matrix has no inverse matrix, just like 0 has no reciprocal. This is a problem that cannot be calculated mathematically